Question

If the edge of a cuboid is incresed by 3cm the volume will by 657cm3 what is the original length of edge of the cube

Answer 1

Let the original length of edge be x

ATQ length is increased by 3 so new length will be x+3

New volume = 657

(X+3)^3 = 657

X+3 = cube root 657

X+ 3 = 8.7

X = 5.7